content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * ------------------------
   * DialBackgroundTests.java
   * ------------------------
   * (C) Copyright 2006-2012, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 03-Nov-2006 : Version 1 (DG);
   * 17-Jun-2012 : Removed JCommon dependencies (DG);
   *
   */
  
  package org.jfree.chart.plot.dial;
  
  import org.jfree.chart.ui.GradientPaintTransformType;
  import org.jfree.chart.ui.StandardGradientPaintTransformer;
  import org.junit.Test;
  
  import java.awt.Color;
  import java.awt.GradientPaint;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Tests for the {@link DialBackground} class.
   */
  public class DialBackgroundTest  {
  
  
  
  
  
      /**
       * Confirm that the equals method can distinguish all the required fields.
       */
      @Test
      public void testEquals() {
          DialBackground b1 = new DialBackground();
          DialBackground b2 = new DialBackground();
          assertEquals(b1, b2);
  
          // paint
          b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.yellow));
          assertFalse(b1.equals(b2));
          b2.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.yellow));
          assertEquals(b1, b2);
  
          // gradient paint transformer
          b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                  GradientPaintTransformType.CENTER_VERTICAL));
          assertFalse(b1.equals(b2));
          b2.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                  GradientPaintTransformType.CENTER_VERTICAL));
          assertEquals(b1, b2);
  
          // check an inherited attribute
          b1.setVisible(false);
          assertFalse(b1.equals(b2));
          b2.setVisible(false);
          assertEquals(b1, b2);
  
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashCode() {
          DialBackground b1 = new DialBackground(Color.RED);
          DialBackground b2 = new DialBackground(Color.RED);
          assertEquals(b1, b2);
          int h1 = b1.hashCode();
          int h2 = b2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          // test default instance
          DialBackground b1 = new DialBackground();
          DialBackground b2 = (DialBackground) b1.clone();
          assertNotSame(b1, b2);
          assertSame(b1.getClass(), b2.getClass());
          assertEquals(b1, b2);
  
          // test a customised instance
          b1 = new DialBackground();
          b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.green));
          b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                  GradientPaintTransformType.CENTER_VERTICAL));
          b2 = (DialBackground) b1.clone();
          assertNotSame(b1, b2);
          assertSame(b1.getClass(), b2.getClass());
          assertEquals(b1, b2);
  
          // check that the listener lists are independent
          MyDialLayerChangeListener l1 = new MyDialLayerChangeListener();
          b1.addChangeListener(l1);
          assertTrue(b1.hasListener(l1));
          assertFalse(b2.hasListener(l1));
      }
  
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          // test a default instance
          DialBackground b1 = new DialBackground();
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(b1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
          DialBackground b2 = (DialBackground) in.readObject();
              in.close();
  
          assertEquals(b1, b2);
  
          // test a customised instance
          b1 = new DialBackground();
          b1.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.green));
          b1.setGradientPaintTransformer(new StandardGradientPaintTransformer(
                  GradientPaintTransformType.CENTER_VERTICAL));
  
  
              buffer = new ByteArrayOutputStream();
              out = new ObjectOutputStream(buffer);
              out.writeObject(b1);
              out.close();
  
              in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
              b2 = (DialBackground) in.readObject();
              in.close();
  
          assertEquals(b1, b2);
      }
  
  }
  